43131252 has 24 divisors (see below), whose sum is σ = 101005632. Its totient is φ = 14324800.

The previous prime is 43131239. The next prime is 43131259. The reversal of 43131252 is 25213134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43131259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3024 + ... + 9767.

It is an arithmetic number, because the mean of its divisors is an integer number (4208568).

Almost surely, 2^43131252 is an apocalyptic number.

It is an amenable number.

43131252 is an abundant number, since it is smaller than the sum of its proper divisors (57874380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43131252 is a wasteful number, since it uses less digits than its factorization.

43131252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13079 (or 13077 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 43131252 is about 6567.4387701752. The cubic root of 43131252 is about 350.6958997895.

Adding to 43131252 its reverse (25213134), we get a palindrome (68344386).

It can be divided in two parts, 4313 and 1252, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 43131252 in words is "forty-three million, one hundred thirty-one thousand, two hundred fifty-two".